package com.bruce.demo2.patterns.demo2.structural.demo07.adapter.demo3;

/**
 * @PROJECT_NAME: design_patterns
 * @DESCRIPTION: SD读卡器抽象类，实现了写功能可以为空方法,后续子类继承后只需重写即可。
 * @AUTHOR: CNBruceLee
 * @DATE: 2021/7/22 21:31
 */
public abstract class SDCardAbstract implements SDCard {
    public String readSD() {
        return null;
    }

    public void writeSD(String data) {
    }
}
